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Dell OptiPlex 5055 Tower OptiPlex 5055 Tower Owners Manual - Page 71

Drives, External connectors

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Drives Table 25. Drives Feature Internally accessible Specification • 2.5-inch SATA drive bay • 3.5-inch SATA drive bay • M.2 SATA and NVMe SSD External connectors Table 26. External Connectors Specifications Feature Audio Front panel Rear panel Network adapter Serial USB 2.0 USB 3.1 Gen 1 Video Specification • Universal headset • Line out connector RJ-45 connector PS2 and serial connector • Front - 2 • Back - 2 • Internal -2 • Front - 2 • Back - 4 • Internal -0 Supported via external graphics cards • 15-pin VGA connector (one optional VGA connector only supports A- Series APU and Ryzen APUs) • Two DisplayPort 1.2 (DP only supported with A-Series APU and Ryzen APUs) NOTE: Available video connectors may vary based on the optional graphic board selected. System setup 71

Section	Page
Dell OptiPlex 5055 Tower Owner's Manual	3
Working on your computer	6
Safety instructions	6
Turning off your computer	6
Turning off your — Windows	6
Before working inside your computer	7
After working inside your computer	7
Chassis	8
Front chassis view	8
Back chassis view	9
Disassembly and reassembly	10
Back cover	10
Removing Back Cover	10
Installing cover	11
Front Bezel	11
Removing front bezel	11
Installing front bezel	13
Front panel door	13
Opening the front panel door	13
Storage device	14
Removing 3.5–inch hard drive assembly	14
Removing 2.5–inch hard drive assembly	18
Optical drive	20
Removing optical drive	20
Installing optical drive	22
M.2 PCIe SSD	22
Removing optional M.2 PCIe SSD	22
Installing optional M.2 PCIe SSD	23
SD card	24
Removing SD card reader	24
FInstalling SD card reader	25
Memory modules	25
Removing memory module	25
Installing memory module	25
Expansion card	26
Removing PCIe expansion card	26
Installing PCIe expansion card	27
Power supply unit	27
Removing power supply unit – PSU	27
Installing power supply unit – PSU	29
Intrusion switch	29
Removing intrusion switch	30
Installing intrusion switch	30
Power switch	31
Removing power switch	31
Installing power switch	32
Speaker	32
Removing speaker	32
Installing speaker	34
Coin-cell battery	34
Removing coin cell battery	34
Installing coin cell battery	35
Heat sink assembly	36
Removing heat sink assembly	36
Installing heat sink assembly	37
Processor	37
Removing the processor	37
Installing the processor	38
System fan	39
Removing the system fan	39
Installing the system fan	40
VGA Daughterboard	40
Removing the VGA daughter board	40
Installing the VGA daughter board	41
System board	42
Removing the system board	42
Installing the system board	45
System board layout	46
Technology and components	49
Systems management features	49
In-Band Systems Management – Dell Client Command Suite	49
Out-of-Band Systems Management – DASH	50
AMD APUs, AMD Ryzen CPUs and APUs	50
AMD PT B350	51
AMD B350	51
Specification	51
AMD Radeon R7 M450	51
Key Specifications	51
AMD Radeon R5 M430	52
Key Specifications	52
USB features	52
USB 3.1 Gen 1 (SuperSpeed USB)	53
Speed	53
Applications	54
Compatibility	54
DDR4	55
DDR4 Details	55
Memory Errors	56
Active State Power Management	56
System setup	57
Boot menu	57
System Setup options	57
Updating the BIOS in Windows	63
Updating BIOS on systems with BitLocker enabled	64
Updating your system BIOS using a USB flash drive	64
Updating the Dell BIOS in Linux and Ubuntu environments	64
Flashing the BIOS from the F12 One-Time boot menu	65
Technical Specifications	68
Processor	69
Memory	69
Video	69
Audio	70
Network	70
Expansion bus	70
Wireless	70
Drives	71
External connectors	71
Controls and lights	72
Power	72
Physical dimension	73
Environmental	73
Troubleshooting	74
Diagnostic and Power LED codes	74
Enhanced Pre-Boot System Assessment — ePSA diagnostics	78
Getting help	79
Contacting Dell	79